CN2151320Y

CN2151320Y - Durable and energy-saving electromagnetic valve

Info

Publication number: CN2151320Y
Application number: CN 93233504
Authority: CN
Inventors: 严卫
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-03-18
Filing date: 1993-03-18
Publication date: 1993-12-29
Anticipated expiration: 2003-03-18

Abstract

The utility model relates to a durable and energy-saving electromagnetic valve, comprising an electric magnet, a self-locking mechanism and a valve mechanism. The utility model is characterized in that the lower part of the moving core is provided with a double herringbone annular helical groove which can form a self-locking mechanism matching with a spring pin in a slot direction bore in a shell. The valve mechanism is provided with a piston valve clack which has the function of opening and closing the valve with a valve plug together, and a manual valve switch device is also arranged. The utility model has the advantages of simple structure, good tightness, long service life, remarkable electricity-saving effect and reliable working performance.

Description

Durable and energy-saving electromagnetic valve

The utility model relates to a kind of valve, specifically be lengthen the life, the energy-saving electromagnetic valve.

Existing transfusion solenoid valve is made up of valve body, spool, coil, armature and buting iron etc., because solenoid valve is in charged working state after opening transfusion always, so additive decrementation falls much electricity, and cause that therefrom electromagnetic coil generates heat for a long time, temperature rise is very high, often burn out coil and influence working life of solenoid valve, limited the using scope of solenoid valve." the economize on electricity solenoid valve " of patent applied for (CN87205710U) and " energy-saving electromagnetic valve " (CN87209941U) technology adopted two electromagnetic coil mechanical types or permanent magnetism self-locking mechanism, under the attracting state of solenoid valve, pin valve rod, cut off the electricity supply simultaneously, valve is worked under no current state, starting another coil during throttle down opens self-locking valve rod is fallen, obtained satisfied power savings, but this project organization complexity, raw materials consumption is big, the manufacture cost height, and be not easy to automatic control.

The purpose of this utility model just provides a kind of solenoid valve of new structure, adopts a coil to cooperate with self-locking mechanism and automatically realizes self-locking and remove self-locking, have simple in structure, long service life, good airproof performance is saved the obvious results characteristics.

Solution of the present utility model is: comprise the electromagnet that is made of secured core spring and movable core, self-locking mechanism, one end is connected with movable core, the valve mechanism that valve rod that the other end is connected with valve plug and valve body constitute, wherein have four spiral chutes in the bottom of movable core, article two, left-handed, article two, dextrorotation, head and the tail are communicated with the double word loop configuration of formation successively, and every groove all is shallow by being deep to, make per two groove end-to-end places form step, on the housing of movable core outside, have transverse groove, in the spring pin that is inserted in the spiral chute be housed constitute self-locking mechanism, in valve mechanism, the medium that the valve plug of band sealing gasket is placed on the piston type flap releases on the hole, the piston type flap be placed on the media outlet of valve body and with the body cavity Spielpassung, piston type flap loam cake has cover plate with holes.

Like this, when electromagnet feeds, before valve is not worked, because movable core, valve rod, the deadweight of valve plug and the elastic force effect of spring make valve plug tightly suppress the piston type flap downwards, closed dielectric releases the hole, simultaneously, the gap of medium between piston type flap and valve body of coming in from the medium inlet enters valve pocket top and flow into piston type flap inside from the hole of flap cover plate, utilizes the pressure of medium in the piston type flap that the piston type flap is pressed on the valve body, and valve is closed tightly.When energising a period of time (such as 2 seconds), the elastic force that the electromagnetic force that electromagnet produces makes movable core overcome deadweight and spring moves upward, simultaneously, because the effect of elasticity pin, inhour rotation at leisure when forcing movable core to move upward, push up secured core up to movable core, spring pin then along article one spiral chute on the movable core from dark a to shallow b, enter the dark d point of second spiral fluted then, after 2 seconds, because power supply is cut off, the magnetic force of electromagnet disappears, and movable core is owing to conducting oneself with dignity and moving downward under spring action, because the d point has a step to the b point, so movable core can't have to rotate and move down by clockwise direction by original orbiting motion, spring pin then moves to shallow e point from the dark d point of spiral fluted, enter the 3rd the dark f point of spiral fluted then, owing to blocked by top block, movable core can't continue to move down, and forms self-locking.After the energising, when movable core moves up, just driving valve plug by valve rod moves up, the medium in the piston type flap and the medium on valve pocket top leak in a large number by the hole of releasing of piston type flap, and the gap of medium by piston type flap and valve body can't in time replenish, make and produce very big pressure difference between the top of piston type flap and the bottom, simultaneously movable core rises and drives valve rod and valve plug is given auxiliary force that makes progress of piston type flap, makes to move on the plug formula flap and open valve.When the needs throttle down, switched on for 2 seconds to electromagnetism, electromagnetic force makes on the movable core and moves, and clockwise rotate, when withstanding secured core, spring pin moves to shallow g point from the dark f point of spiral fluted, and enters the 4th the dark m point of spiral fluted, remove self-locking, after the outage, magnetic force disappears, and the deadweight of spring and movable core moves downward movable core and counterclockwise rotates, to being pressed on the piston type flap to valve plug, the piston type flap is pressed on the valve body, and valve closing, spring pin then move to shallow n point from dark m point, and enter the dark a point of article one spiral fluted, the i.e. initial point of second work cycle.The utility model utilizes movable core top to make armature and uses, self-locking mechanism usefulness is made in the bottom, and is simple in structure, and utilize helical groove structure and spring pin to cooperate and realized self-locking and removed self-locking, the structure of piston type flap has improved sealing, has reduced the loss of medium.

The utility model is provided with the hand switch valving, tooth bar promptly is housed on valve rod, be meshed with the gear of being with handle and be contained on the bearing support, by handle gear is rotated, the motion of drive tooth bar cooperates self-locking mechanism, and valve rod just makes valve plug and piston type flap open or close valve, make valve under power failure or fortuitous event, valve normally be opened or closed, make the performance of solenoid valve more reliable.

In the valve bonnet seal groove between valve rod of the present utility model and valve gap seal ring is housed, seals,, corrosion protection and life-saving are played an important role in case lower liquid enters self-locking mechanism along valve rod.In the piston type flap bottom that the piston type flap contacts with valve body seal ring is housed, has further improved the sealing of valve.

The utility model provides lengthens the life, the energy-saving electromagnetic valve arrangement is simple, good airproof performance, long service life, power savings is remarkable, automatically control has realized self-locking and has removed self-locking, also set up the manual valve-opening device, both made under power failure or the fortuitous event and all can make the normal opening and closing of valve, made performance of the present utility model more reliable.

Concrete structure of the present utility model is provided by the following drawings and embodiment.

At first accompanying drawing is described:

Fig. 1 represents structure of the present utility model;

Fig. 2 represents the schematic representation of movable core lower part helical groove;

The unfolded drawing of Fig. 3 presentation graphs 2;

The A-A section of Fig. 4 presentation graphs 3.

According to embodiment shown in the drawings, the secured core (1) of band cone shape hole is contained on the skeleton (3), the top of movable core (2) is conical, have four spiral chute ab on the circumference of bottom, de, fg, mn constitutes double word loop configuration, every groove all is shallow by being deep to, article two, groove end-to-end place forms step, on housing (8), have transverse holes, by screw (7) spring (6) and pin (5) are housed, the bottom of movable core (2) is tooth bar (10), be meshed with the gear (28) on being contained in bearing support, gear shaft is equipped with handle on (27), housing (8) is connected with bolt (19) by base plate (4) with skeleton (3), on the medium outfall (20) of valve body (15), be placed with the piston type flap (17) of band seal ring (23), with valve body (15) inner chamber be Spielpassung, be stamped cover plate with holes (16) on the piston type flap (17), the valve plug (22) that has sealing gasket (24) is placed in the outlet of piston type flap, one end of valve rod (9) is connected with valve plug (22), the other end is connected on the movable core (2), be stamped valve gap (13) on the valve body (15), be connected with nut (14) by bolt (12), valve gap (13) is connected as a single entity by sunk screw (11) with housing (8), and seal ring (26) and valve rod (9) sealing are housed in the circular groove of valve gap (13).(18) be the medium inlet, (21) are media outlet, and (25) are uuper valve chamber, (29) spring, (30) pedestal cap, (31) coil.

Claims

1, a kind of lengthening the life, energy-saving electromagnet, comprise the electromagnet that constitutes by secured core spring and movable core, self-locking mechanism, one end is connected with movable core, the valve mechanism that valve rod that the other end is connected with valve plug and valve body constitute, feature of the present utility model is to have four spiral chute (ab in the bottom of movable core (2), de, fg, mn), article two, left-handed, article two, dextrorotation, head and the tail are communicated with the double word loop configuration of formation successively, and every groove all is shallow by being deep to, make per two groove end-to-end places become step, on the outside housing (8) of movable core (2), have transverse groove, in the spring pin (5) that is inserted in the spiral chute be housed constitute self-locking mechanism, in valve mechanism, the medium that the valve plug (22) of band sealing gasket (24) is placed on piston type flap (17) releases on the hole (20), piston type flap (17) be placed on the media outlet of valve body (15) and with valve body (15) inner chamber Spielpassung, be stamped cover plate with holes (16) on the piston type flap (17).

2, according to claim 1ly lengthen the life, the energy-saving electromagnetic valve, it is characterized in that being provided with the hand switch valving, tooth bar (10) promptly is housed on valve rod (9), be meshed with band handle and the gear (28) that is contained on the bearing support.

3, according to claim 1 and 2ly lengthen the life, the energy-saving electromagnetic valve, it is characterized in that in the valve bonnet seal groove between valve rod (9) and valve gap (13) seal ring (26) being housed, seal ring (23) is housed in the piston type flap (17) and piston type flap (17) bottom of valve body (15) contacting point.